Learn R & Statistics
Through Practice
Master econometrics and data analysis by solving hands-on coding problems. No theory overload — just real practice with instant feedback.
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Practice Problems
From basic statistics to causal inference, covering the full econometrics curriculum.
Instant Feedback
Run your code and get immediate validation. See how you compare to other learners.
Progressive Hints
Stuck? Unlock hints one at a time to guide your learning without giving away the answer.